题目内容

道地药材不一定是产量大、使用历史悠久的药材。()

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中药的功效是主治的支撑点，主治是功效的一个范围。()

Question 4
Chan promised to pay his nephew ＄5,000 if his nephew would refrain from drinking liquor and using tobacco until the nephew should be 21 years of age. The nephew took Chan's words seriously, and abandoned drinking and smoking. After the nephew celebrated his 21st birthday, he asked Chan to pay the amount promised, Chan refused.
Could the nephew sue Chan for breach of the contract？

伏龙芝军事学院是法国一所高等军事学院。()
参考答案：错误

《神农本草经》的成书时间还有待考证。()